<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>JS语句块</title>
</head>
<body>
<script>
	
    if(true){
        document.write("第一条语句执行");
        document.write("<br/>");
        document.write("第二条语句执行");
    }

</script>
</body>
</html>